English definition of “card”
MESSAGE [C] › a folded piece of stiff paper with a picture on the front and a message inside that you send to someone on a special occasion: a birthday card
INFORMATION [C] › a piece of stiff paper or plastic that has information printed on it: a library card This phone accepts coins and cards.
GAME [C] (also playing card) › one of a set of 52 pieces of stiff paper with numbers and pictures used for playing games: UK a pack of cards/US a deck of cards We spent the evening playing cards (= playing games using cards).
PAPER [U] UK › thick, stiff paper
WITHOUT ENVELOPE [C] › a postcard (= card with a picture on one side that you send without an envelope)
COMPUTER [C] › a part inside a computer which controls how the computer operates: a graphics/sound card → See also cash card → See also charge card → See also Christmas card → See also credit card → See also debit card → See also phone card → See also smart card → See also swipe card → See also trump card → See also wild card